Spike-making device.



WILLIAM OTTO FRAGMEIER AND OTTO GUSTVE MUHLIG, OFIPOBTLAND, OREGON.

SPIKE-MAKING- DEVICE.

Specication of Letters Patent.` l n Patented lily 23, '1918.

VApplication filed January 8, 1918. Serial No. 210,876.

To all whom t may concern Be it known that we, WILLIAM Orro FRAG- MninR and OTTO GUs'rAvn MU'HLIG, citizens of the United States, and residents of Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Spike-Making Devices, of which the following in a specification.

Our invention is an improvement in spike making devices, and has for its object to provide a device of the character specified, b v means of which two spikes may have their points simultaneously cut and pointed, without leaving any flare, fin or other superiiuous material, and wherein two spikes may be formed at once.

In the drawings:

Figure 1 is a top plan view of the device, with the parts of the mold separated;

Fig. 2 is a longitudinal vertical section, with the mold sections closed;

Fig. 3 is a perspective View of the mold with a portion of one section cut away; and

Fig. 4l is a perspective view of the point of a spike.

In the present embodiment of the invention, the mold is sectional, consisting of similar sections 1 and 2, each of which is rabbeted at one edge, as indicated at 8, and the sections are so arranged that the rabbeted portions thereof will lit each other in the manner shown in Fig. 2. Each section is recessed, as indicated at 4, at the angle of the rabbet, to receive the tools or dies 5 which are similar and of self-hardening tool steel. These dies 5 are held in place in the recesses t by means of screws 6 which are passed downwardly through registering openings in the dies and in the sections of the mold, in such manner that the dies may be easily removed when desired.

Each die, as shown more particularly in Figs. 1 and 2, has at its center and on'its outer edge a substantially triangular extension 7, and the said extensions form at their apices cutting edges to separate a bar 8 of metal from which two spikes are to be formed. This bar is placed in the mold between the die sections, being heated to a suitable temperature, and the sections are then forced together in any suitable manner, until the points of the extensions 7 meet to cut the bar 8 in two, thus forming two spikes.

Since the sections of the mold which, in practice, are cast iron or the like, lap over and cover the open top and bottom of the :space between the die sections, and the die sections themselves form an'unyielding wall at the opposite sides of the spike, the bar 8 will be cut into two perfectly formed spikes, without any flare at the point 9 of the spike, and'without" any lin or superfluous metal. The ends of the bar may be headed at each end of the die, as shown at 10 in Fig. 1, and the bar may be headed before or after it is cut. toward and from each other in any suitable or desired manner, as, for instance, by means of links 11, which have the ends adjacent to the sections received between spaced lugs 12, and a bolt 13 is passed through registering openings in the lugs and in the link and engaged by a nut 14 to hold the parts together.

The outer end of each link is connected to an eccentric secured to a shaft 15, and these shafts may be driven in any suitable or desired manner. n

The improved device is especially adapted for small plants, having no special machines, where the heads of the spikes are made in various ways, andthe point in a separate operation, generally by the use of a small trip hammer. Wit-h the present construction, two spikes may be made at one operation, and with perfectly formed points.

We claim:

1. A device of the character specified, comprising similar mold sections, said sections being rabbeted on their meeting edges to lap one uponthe other, and each being recessed at the angle of the rabbet to receive a die, dies detachably held in the recesses at the rabbeted face, each die having at the center of the edge adjacent to the other die a triangular extension adapted to abut at its apex the apex of the extension of the other die to out a bar to form two spikes, the space between the dies extending to the ends vof the mold sections to permit the bar to extend beyond said sections to permit the formation of ahead at each end of the bar.

2. A device of the character specified, comprising similar mold sections, said sections being rabbeted on their meeting edges to lap one upon the other, and each being recessed at the angle of the rabbet to receive a die, dies detachably held in the recesses at the rabbeted face, each die having at the'center of the edge adjacent to the other die a tri'- angular extension .adapted to abut at Yits The sections of the mold are moved apex the apex of the extension of the other recessed atthe angiev of the rabbet to receive 10 die to eut a bar to form two spikes, and a die, dies detachabiy held in the recesses means for moving the sections toward each at the rabbeted face, each die'hawing at the other and for guiding them in their movecenter of the edge adjacent to the other die ment. i i a triangular extension adapted to abut at 3. A device of the character specied, its. apex the apex of the extension of the 15 eon'lprising similar Vmold sections, said secother die to cut a bar to form two spikes. tions being rabbeted on their meeting edges WILLIAM OTTO FRAGMEER. to lap one upon the other, and each being OTTO GUSTAVE MUHLIG.

Copies of this patent may be obtained for ve cents each, by, addressing the Gommssioner of Patents, Washington, D. C. 

